001: /*
002: The contents of this file are subject to the Common Public Attribution License
003: Version 1.0 (the "License"); you may not use this file except in compliance with
004: the License. You may obtain a copy of the License at
005: http://www.projity.com/license . The License is based on the Mozilla Public
006: License Version 1.1 but Sections 14 and 15 have been added to cover use of
007: software over a computer network and provide for limited attribution for the
008: Original Developer. In addition, Exhibit A has been modified to be consistent
009: with Exhibit B.
010:
011: Software distributed under the License is distributed on an "AS IS" basis,
012: WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for the
013: specific language governing rights and limitations under the License. The
014: Original Code is OpenProj. The Original Developer is the Initial Developer and
015: is Projity, Inc. All portions of the code written by Projity are Copyright (c)
016: 2006, 2007. All Rights Reserved. Contributors Projity, Inc.
017:
018: Alternatively, the contents of this file may be used under the terms of the
019: Projity End-User License Agreeement (the Projity License), in which case the
020: provisions of the Projity License are applicable instead of those above. If you
021: wish to allow use of your version of this file only under the terms of the
022: Projity License and not to allow others to use your version of this file under
023: the CPAL, indicate your decision by deleting the provisions above and replace
024: them with the notice and other provisions required by the Projity License. If
025: you do not delete the provisions above, a recipient may use your version of this
026: file under either the CPAL or the Projity License.
027:
028: [NOTE: The text of this license may differ slightly from the text of the notices
029: in Exhibits A and B of the license at http://www.projity.com/license. You should
030: use the latest text at http://www.projity.com/license for your modifications.
031: You may not remove this license text from the source files.]
032:
033: Attribution Information: Attribution Copyright Notice: Copyright © 2006, 2007
034: Projity, Inc. Attribution Phrase (not exceeding 10 words): Powered by OpenProj,
035: an open source solution from Projity. Attribution URL: http://www.projity.com
036: Graphic Image as provided in the Covered Code as file: openproj_logo.png with
037: alternatives listed on http://www.projity.com/logo
038:
039: Display of Attribution Information is required in Larger Works which are defined
040: in the CPAL as a work which combines Covered Code or portions thereof with code
041: not governed by the terms of the CPAL. However, in addition to the other notice
042: obligations, all copies of the Covered Code in Executable and Source Code form
043: distributed must, as a form of attribution of the original author, include on
044: each user interface screen the "OpenProj" logo visible to all users. The
045: OpenProj logo should be located horizontally aligned with the menu bar and left
046: justified on the top left of the screen adjacent to the File menu. The logo
047: must be at least 100 x 25 pixels. When users click on the "OpenProj" logo it
048: must direct them back to http://www.projity.com.
049: */
050: package com.projity.datatype;
051:
052: import java.text.FieldPosition;
053: import java.text.Format;
054: import java.text.NumberFormat;
055: import java.text.ParsePosition;
056:
057: import com.projity.util.ClassUtils;
058:
059: /**
060: * Adds ability for percentage formatter to parse non percents
061: */
062: public class PercentFormat extends Format {
063: private static NumberFormat NUMBER_FORMAT = NumberFormat
064: .getNumberInstance();
065: private static NumberFormat PERCENT_FORMAT = NumberFormat
066: .getPercentInstance();
067: public static double NULL_VALUE = -987654.321; // a never used value used as flag to indicate multiple values
068: private static Format percentFormatterInstance = null;
069:
070: public static Format getInstance() {
071: if (percentFormatterInstance == null)
072: percentFormatterInstance = new PercentFormat();
073: return percentFormatterInstance;
074: }
075:
076: /* (non-Javadoc)
077: * @see java.text.Format#parseObject(java.lang.String, java.text.ParsePosition)
078: */
079: public Object parseObject(String arg0, ParsePosition arg1) {
080: Number result = PERCENT_FORMAT.parse(arg0, arg1);
081: if (result == null) {
082: result = NUMBER_FORMAT.parse(arg0, arg1);
083: if (result != null)
084: result = new Double(result.doubleValue() / 100.0D);
085: }
086: return result;
087: }
088:
089: /* (non-Javadoc)
090: * @see java.text.Format#format(java.lang.Object, java.lang.StringBuffer, java.text.FieldPosition)
091: */
092: public StringBuffer format(Object arg0, StringBuffer arg1,
093: FieldPosition arg2) {
094: if (ClassUtils.isMultipleValue(arg0)) {
095: arg1.append(com.projity.field.Field.MULTIPLE_VALUES);
096: return arg1;
097: } else if (ClassUtils.isDefaultValue(arg0)) {
098: return arg1; // empty
099: }
100: Object value;
101: if (arg0 instanceof Rate)
102: value = new Double(((Rate) arg0).getValue());
103: else
104: value = arg0;
105: PERCENT_FORMAT.format(value, arg1, arg2);
106: return arg1;
107: }
108:
109: public String format(double value) {
110: return format(new Double(value));
111: }
112:
113: public static boolean isSpecialValue(Double v) {
114: return v.equals(ClassUtils.PERCENT_MULTIPLE_VALUES)
115: || v.doubleValue() == NULL_VALUE;
116: }
117:
118: }
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